Automatic spraying equipment for surface layer of long-strip-shaped steel member

Abstract

The invention discloses automatic spraying equipment for a surface layer of a long-strip-shaped steel member, which comprises a conveying mechanism, a plurality of groups of conveying frames, a spraying chamber, an annular frame and a spray head, and further comprises an annular spraying mechanism, the annular frame is hollow and is communicated with a liquid supply end through an outer column casing, and the annular spraying mechanism comprises a lining frame rotationally mounted on the inner side of the annular frame; the lining frame is driven by an outer driving structure, and the spray head is mounted on the inner side of the lining frame and is communicated with the interior of the annular frame; the inclined side guide mechanism comprises a mounting frame arranged at the front end or the rear end of the annular frame, the reinforcing steel bar penetrates through the center of the mounting frame, a rotating piece matched with the reinforcing steel bar is arranged on the inner side of the mounting frame, and the rotating piece is driven by an external structure.

Description

Technical Field

[0001] The invention relates to a metal wire material processing device, in particular to an automatic spraying device for the surface layer of a long strip steel component. Background Art

[0002] Steel bars are widely used in construction, especially in rail engineering. Due to the complexity of working conditions, they need to be sprayed before use.

[0003] In traditional spraying equipment, manual loading is used for spraying, which is not only time-consuming and labor-intensive, but also difficult to ensure the uniformity of the spraying surface. The existing technology mostly uses an automated transmission structure to transmit the entire section of steel bars to the lower end of the spraying structure, and sprays the cylindrical steel bars through multi-directional nozzles to form a uniform spray layer. Although this spraying method can achieve the effect of uniform spraying, it is relatively wasteful of spray liquid. The spray liquid will repeatedly cover the same position, and excess spray liquid will drip at the bottom of the equipment, resulting in excessive waste of spray liquid. Since part of the spray liquid will be deposited on the bottom steel bar surface, the coating at the bottom will be slightly thicker than that at other positions, resulting in the overall diameter of the steel bar being uneven, which is easy to cause single-point wear during use.

[0004] Therefore, this case aims to provide an automatic spraying equipment for the surface layer of long steel components, which can not only allow the steel bar itself to rotate and move forward, but also allow the structure on which the nozzle is installed to rotate, thereby reducing the coverage area of ​​the nozzle while ensuring the spraying efficiency, achieving uniform spraying while reducing the amount of spraying waste and reducing the spraying cost. Summary of the invention

[0005] The present invention provides an automatic spraying device for the surface layer of a long strip steel component, which can effectively solve the above problems.

[0006] The present invention is achieved in that: An automatic spraying device for the surface layer of a long steel member comprises a transmission mechanism, wherein the transmission mechanism is provided with a plurality of transmission racks for transmitting steel bars to a spraying position; a spraying chamber for receiving the steel bars transmitted by the transmission rack, comprising a plurality of staggered annular racks, wherein a plurality of spray heads are provided in the annular racks, and the automatic spraying device further comprises: A ring-type spraying mechanism, wherein the ring frame is hollow, the ring frame is connected to the liquid supply end through an outer cylinder, the ring-type spraying mechanism comprises an inner liner frame rotatably mounted on the inner side of the ring frame, the inner liner frame is driven by an external driving structure, the spray head is mounted on the inner side of the inner liner frame and is connected to the inside of the ring frame, and the inner liner frame drives the spray head to rotate when rotating along the inner wall of the ring frame; The oblique side guiding mechanism comprises a mounting frame arranged at the front end or rear end of the annular frame, the steel bar passes through the center of the mounting frame, a rotating member cooperating with the steel bar is arranged on the inner side of the mounting frame, the rotating member is driven by an external structure, and the steel bar moving along a straight line rotates under the action of the rotating member when passing through the rotating member.

[0007] As a further improvement, the inner ring surface of the annular frame is provided with a movable groove, and the inner lining frame includes a rotating ring plate movably arranged in the movable groove, and the end of the rotating ring plate away from the annular frame is connected to an outer covering plate, and three nozzles are arranged on the outer covering plate, and the angle between the three nozzles is 120°.

[0008] As a further improvement, the outer cover plate is an arc-shaped plate, and annular gear rings are provided on both sides of the surface of the outer cover plate, and the gear rings are meshed with the external driving structure.

[0009] As a further improvement, the external drive structure is provided with two groups and respectively cooperates with two gear rings. The external drive structure includes a long gear meshing with the gear ring, and a driving gear is meshed at the top of the long gear. The driving gear is driven by a rotating motor, and the rotating motor is arranged at the top of the annular frame.

[0010] As a further improvement, a sealing strip is provided on the outer side of the gear ring, and the sealing strip is fixedly connected to the inner side wall of the annular frame.

[0011] As a further improvement, the mounting frame includes two mounting rods fixed on the outside of the annular frame, a mounting ring is fixed between the two mounting rods, the mounting ring is hollow, and the steel bar passes through the center of the mounting ring.

[0012] As a further improvement, the outer circumferential surface of the mounting ring is provided with a plurality of grooves, the rotating parts are a plurality of internal bevel gears, partial conical surfaces of the internal bevel gears are embedded in the grooves and cooperate with the steel bars, and the axial direction of the internal bevel gears is fixed to the mounting ring through a U-shaped frame.

[0013] As a further improvement, the external structure includes an external bevel gear that cooperates with the internal bevel gear, and the external bevel gear is driven by a rotary motor, and the rotary motor is locked on the mounting ring.

[0014] As a further improvement, the transmission frame is a V-shaped groove used to clamp the steel bars.

[0015] As a further improvement, the feed end of the spraying chamber is provided with a guiding mechanism, and the guiding mechanism includes a side limiting structure arranged on the side of the steel bar, and a transverse limiting structure arranged on the top of the steel bar. The side limiting structure includes two side guide wheels for driving the steel bar forward and limiting the side of the steel bar. The bottom of the side guide wheel is driven by a bottom motor. The transverse limiting structure includes a cross bar located at the top of the steel bar. A plurality of top guide wheels corresponding to the number of steel bars are mounted on the cross bar, and the side direction of the cross bar is driven by a side motor.

[0016] The beneficial effects of the present invention are: In the existing spraying equipment, the steel bars are often transported in a straight line and sprayed through equidistantly arranged nozzles, so as to realize the spraying of the outer surface of the steel bars. Although this method can achieve the effect of automatic spraying of the outer surface, due to the fixed-point spraying, in fact, part of the spraying liquid will be deposited on the bottom of the moving steel bars after spraying, resulting in uneven spraying surface of the steel bars. Therefore, the present invention uses a ring-type spraying mechanism to pass the spraying liquid into the ring frame, and allows the lining frame to be slidably installed in the ring frame, so that the nozzle installed on the lining frame can realize the change of position, and the spraying liquid therein will not leak out during the rotation of the nozzle, so that the position of the nozzle can be changed, the spraying amount of the nozzle can be reduced, and the effect of multi-point forming a surface can be achieved, so that the spraying surface is more uniform, the spraying surface is thinner and more uniform, the steel bar coating after spraying is more stable, and a dot matrix coating structure can be formed.

[0017] During the setting process of the liner frame, it is necessary not only to ensure that it can rotate, but also to avoid leakage of the spray liquid. Therefore, the present invention opens a movable groove on the annular frame to allow the rotating ring plate in the liner frame to cooperate with the movable groove, so that it can achieve rotation and sealing at the same time, and the spray liquid will be directly sprayed out through the spray set on the outer cover plate, which will not affect the normal spraying effect. In order to better control the spraying uniformity, the spacing between the nozzles is set to 120°.

[0018] During the rotation of the liner frame, it needs to rotate, but the annular frame cannot rotate because it needs to be connected to the liquid supply end through the outer cylinder. Therefore, the present invention arranges two sets of gear rings on the outer cover plate of the liner frame, and the local movement of the liner frame is realized through the cooperation of the gear rings and the external driving structure, thereby achieving the effect of the liner frame rotating while the annular frame does not move.

[0019] In the process of the external drive structure driving the ring gear, since the ring gear is located in a relatively inner area, the structure that cooperates with the ring gear in the external drive structure is a long gear, so that it can cooperate with the ring gear across a longer distance, and the long gear is driven by a rotating motor through a belt drive to achieve the position change of the ring gear, thereby achieving the position change of the inner liner frame.

[0020] In order to improve the sealing effect between the liner frame and the annular frame when the gear ring rotates, a sealing strip is embedded on the outer side of the gear ring. The sealing strip can squeeze any gap between the two, thereby avoiding possible leakage at this position.

[0021] In the existing steel bar conveying structure, most of them adopt the form of linear transmission to convey the steel bars directly to the front end. However, it is difficult to ensure that the steel bars are free of local deposition if the steel bars are kept moving in the same plane even when the spraying structure can rotate. Therefore, the present invention, through the added oblique side guide mechanism, under the premise that the steel bars can be conveyed in a linear manner, a rotating part and an external structure are arranged at the front end or the rear end of the entire annular frame, so that the rotating part can contact the steel bars and drive the steel bars to rotate by cooperating with the surface texture of the steel bars, so that the rotating steel bars are matched with the rotating spraying structure, so as to achieve sufficient spraying without causing waste and avoid local deposition on the steel bars.

[0022] Since the steel bars are output from the middle of the entire annular frame, when setting up the mounting frame, the mounting ring in the mounting frame also needs to be set in the central area of ​​the corresponding annular frame, so as to play a certain role in limiting and guiding the steel bars.

[0023] The surface of the steel bar is not smooth, but has a structure similar to a thread. Therefore, if it is to be rotated, the rotating structure needs to fit with the surface of the steel bar. Therefore, the present invention sets the rotating member as an internal bevel gear so that the internal bevel gear can better fit with the texture of the steel bar surface, so that the steel bar can be driven to rotate together when rotating. Moreover, since the steel bar itself has the characteristic of moving forward based on the front structure, the effect of turning while moving can be achieved.

[0024] In the front moving structure of the steel bar, the present invention is divided into two parts, namely, a side limiting structure and a transverse limiting structure arranged at the front end of the spraying room, through the lateral and top power, combined with the lower limiting effect of the V-shaped groove, so that the steel bar can move forward in a straight line until it reaches the position of the oblique guide mechanism and is rotated. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural schematic diagram of the present invention.

[0027] Figure 2 It is a structural schematic diagram of the spray chamber of the present invention.

[0028] Figure 3 The present invention Figure 2 Front view of .

[0029] Figure 4 It is a structural schematic diagram of the ring-type spraying mechanism and the oblique side guiding mechanism of the present invention.

[0030] Figure 5 It is a structural schematic diagram of the ring-type spraying mechanism of the present invention.

[0031] Figure 6 The present invention Figure 5 Front view of .

[0032] Figure 7 The present invention Figure 6 Cross-section view at AA in the middle.

[0033] Figure 8 It is a structural schematic diagram of the oblique side guide mechanism of the present invention.

[0034] Fig. 9 The present invention Figure 1 Magnified view of area B.

[0035] Fig.10 It is an overall diagram of the present invention assembled on a spraying line.

[0036] In the figure: Transmission mechanism 10, transmission frame 11, spray chamber 20, annular frame 21, outer cylinder 211, nozzle 22, ring spray mechanism 30, liner frame 31, rotating ring plate 311, outer cover plate 312, gear ring 3121, outer drive structure 32, long gear 321, drive gear 322, rotating motor 323, sealing strip 33, oblique side guide mechanism 40, mounting frame 41, mounting rod 411, mounting ring 412, rotating part 42, external structure 43, outer bevel gear 431, rotating motor 432, guide mechanism 50, side limiting structure 51, side guide wheel 511, bottom motor 512, lateral limiting structure 52, cross bar 521, top guide wheel 522, lateral motor 523. DETAILED DESCRIPTION

[0037] In order to make the embodiments of the present invention, all belong to the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0038] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as referring to the purpose, technical solutions and advantages of the methods. To be more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work indicate or imply relative importance or implicitly indicate the number of indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0039] Reference Figures 1 to 10 As shown, an automatic spraying device for the surface layer of a long steel member comprises a transmission mechanism 10, wherein the transmission mechanism 10 is provided with a plurality of transmission frames 11 for transmitting steel bars to a spraying position; a spraying chamber 20 for receiving steel bars transmitted by the transmission frame 11, comprising a plurality of staggered annular frames 21, wherein a plurality of spray heads 22 are arranged in the annular frames 21, and the automatic spraying device further comprises: an annular spraying mechanism 30, wherein the annular frame 21 is hollow, wherein the annular frame 21 is connected to a liquid supply end through an outer cylinder 211, and wherein the annular spraying mechanism 30 comprises an inner lining frame 31 rotatably mounted on the inner side of the annular frame 21, The inner liner frame 31 is driven by an external driving structure 32, and the nozzle 22 is installed on the inner side of the inner liner frame 31 and communicated with the inside of the annular frame 21. When the inner liner frame 31 rotates along the inner wall of the annular frame 21, the nozzle 22 is driven to rotate; the oblique side guide mechanism 40 includes a mounting frame 41 arranged at the front end or rear end of the annular frame 21, and the steel bar passes through the center of the mounting frame 41. A rotating part 42 cooperating with the steel bar is arranged on the inner side of the mounting frame 41, and the rotating part 42 is driven by an external structure 43. When the steel bar moving in a straight line passes through the rotating part 42, it rotates under the action of the rotating part 42.

[0040] During the steel bar spraying process, the steel bars are transported into the spraying room 20 through the transmission frame 11 by manual or automatic feeding, and the steel bars are sprayed through the spray head 22 in the spraying room 20 .

[0041] In this embodiment, the three nozzles 22 are located on the same plane, which can actually expand the area of ​​the liner frame 31 so that the three nozzles 22 can be staggered to achieve a better spraying effect.

[0042] The structure of the steel bar and the spray coating both rotate, and the two directions of rotation are opposite, so that the effect of evenly compensating the spray coating can be achieved in a short time.

[0043] In the existing spraying equipment, the steel bars are often transported in a straight line and sprayed through equidistantly arranged nozzles 22, so as to achieve the spraying of the outer surface of the steel bars. Although this method can achieve the effect of automatic spraying of the outer surface, due to the fixed-point spraying, in fact, part of the spraying liquid will be deposited at the bottom of the moving steel bars after spraying, resulting in uneven spraying surface of the steel bars. Therefore, the present invention provides an annular spraying mechanism 30 to pass the spraying liquid into the annular frame 21, and allows the lining frame 31 to be slidably installed in the annular frame 21, so that the nozzle 22 installed on the lining frame 31 can achieve position change, and the spraying liquid therein will not leak out during the rotation of the nozzle 22, so that the nozzle position can be changed, the spraying amount of the nozzle can be reduced, the spraying surface can be more uniform, the spraying surface can be thinner and more uniform, and the steel bar coating after spraying is more stable.

[0044] During the setting process of the inner liner frame 31, it is necessary not only to ensure that it can rotate, but also to avoid leakage of the spray liquid. Therefore, a movable groove is provided on the inner ring surface of the annular frame 21 of this embodiment, and the inner liner frame 31 includes a rotating ring plate 311 movably set in the movable groove, and the end of the rotating ring plate 311 away from the annular frame 21 is connected to an outer cover plate 312, and three nozzles 22 are arranged on the outer cover plate 312, and the angle between the three nozzles 22 is 120°. By providing a movable groove on the annular frame 21, the rotating ring plate 311 in the inner liner frame 31 is matched with the movable groove, so that rotation and sealing can be achieved at the same time, and the spray liquid will be directly sprayed out through the spray set on the outer cover plate 312, which will not affect the normal spraying effect. In order to better control the spraying uniformity, the spacing between the nozzles is set to 120°.

[0045] During the rotation of the inner liner frame 31, it needs to rotate, but the annular frame 21 cannot rotate because it needs to be connected to the liquid supply end through the outer cylinder 211. Therefore, the outer cover plate 312 of this embodiment is an arc-shaped plate, and annular gear rings 3121 are provided on both sides of the surface of the outer cover plate 312. The gear rings 3121 are meshed with the external drive structure 32. By providing two sets of gear rings 3121 on the outer cover plate 312 of the inner liner frame 31, the local movement of the inner liner frame 31 is realized through the cooperation of the gear rings 3121 and the external drive structure 32, thereby achieving the effect that the inner liner frame 31 rotates while the annular frame 21 does not move.

[0046] In the process of the outer driving structure 32 driving the ring gear 3121, since the ring gear 3121 is located in a relatively inner area, specifically, the outer driving structure 32 is provided with two groups and respectively cooperates with the two ring gears 3121, the outer driving structure 32 includes a long gear 321 meshing with the ring gear 3121, and a driving gear 322 is meshed on the top of the long gear 321, and the driving gear 322 is driven by a rotating motor 323, and the rotating motor 323 is arranged on the top of the annular frame 21. The structure that cooperates with the ring gear 3121 in the outer driving structure 32 is the long gear 321, so that it can cooperate with the ring gear 3121 across a longer distance, and the long gear 321 is driven by the rotating motor 323 through a belt drive to realize the position change of the ring gear 3121, thereby realizing the position change of the inner liner frame 31.

[0047] In order to improve the sealing effect between the liner frame 31 and the annular frame 21 when the gear ring 3121 rotates, a sealing strip 33 is provided on the outer side of the gear ring 3121, and the sealing strip 33 is fixed to the inner wall of the annular frame 21. By embedding a sealing strip 33 on the outer side of the gear ring 3121, the sealing strip 33 can squeeze any gap between the two, thereby avoiding possible leakage at this position.

[0048] In the existing steel bar conveying structure, most of them adopt the form of linear transmission to convey the steel bars directly to the front end. However, it is difficult to ensure that the steel bars are free of local deposition if the steel bars are kept moving in the same plane even when the spraying structure can rotate. Therefore, the present invention adds an oblique side guide mechanism 40, and on the premise that the steel bars can be conveyed linearly, a rotating member 42 and an external structure 43 are provided at the front end or the rear end of the entire annular frame 21, so that the rotating member 42 can contact the steel bars and drive the steel bars to rotate by cooperating with the surface texture of the steel bars, so that the rotating steel bars are matched with the rotating spraying structure, so as to achieve sufficient spraying without causing waste and avoid local deposition on the steel bars.

[0049] Since the steel bar output position is through the middle position of the entire annular frame 21, when setting the mounting frame 41, the mounting frame 41 includes two mounting rods 411 fixed on the outside of the annular frame 21, and a mounting ring 412 is fixed between the two mounting rods 411. The mounting ring 412 is hollow, and the steel bar passes through the center position of the mounting ring 412. The mounting ring 412 in the mounting frame 41 also needs to be set in the central area of ​​the corresponding annular frame 21, so that it can play a certain limiting and guiding role on the steel bar.

[0050] The surface of the steel bar is not smooth, but has a structure similar to a thread. Therefore, if it is to be rotated, the rotating structure needs to fit with the surface of the steel bar. Therefore, the outer peripheral surface of the mounting ring 412 of this embodiment is provided with a plurality of grooves, and the rotating member 42 is a plurality of internal bevel gears. Part of the conical surface of the internal bevel gears is embedded in the grooves to cooperate with the steel bars. The axial direction of the internal bevel gears is fixed to the mounting ring 412 through a U-shaped frame. By setting the rotating member 42 as an internal bevel gear, the internal bevel gear can better fit with the texture of the steel bar surface, so that the steel bar can be driven to rotate together when rotating. Moreover, since the steel bar itself has the characteristic of moving forward on the basis of the front structure, the effect of turning while moving can be achieved.

[0051] The external structure 43 for driving the internal bevel gear, specifically, includes an external bevel gear 431 that cooperates with the internal bevel gear. The external bevel gear 431 is driven by a rotating motor 432. The rotating motor 432 is locked on the mounting ring 412. The internal bevel gear can be driven to rotate by driving the external bevel gear 431 to rotate.

[0052] In this embodiment, the transmission frame 11 is a V-shaped groove for clamping the steel bar, and the steel bar is located in the V-shaped groove. In the front moving structure of the steel bar, this embodiment is divided into two parts. The feed end of the spraying chamber 20 is provided with a guide mechanism 50, and the guide mechanism 50 includes a side limiting structure 51 arranged on the side of the steel bar, and a transverse limiting structure 52 arranged on the top of the steel bar. The side limiting structure 51 includes two side guide wheels 511 for driving the steel bar forward and limiting the side position of the steel bar. The bottom of the side guide wheel 511 is driven by a bottom motor 5 12 driven, the transverse limiting structure 52 includes a transverse bar 521 located at the top of the steel bar, and a plurality of top guide wheels 522 corresponding to the number of steel bars are sleeved on the transverse bar 521. The transverse direction of the transverse bar 521 is driven by a lateral motor 523, which is respectively driven by the side limiting structure 51 and the transverse limiting structure 52 arranged at the front end of the spraying room 20. Through the side and top power and the lower limiting effect of the V-shaped groove, the steel bar can move forward in a straight line until it reaches the position of the oblique guide mechanism 40 and is rotated.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic spraying device for the surface layer of a long steel member, comprising a transmission mechanism (10), wherein the transmission mechanism (10) is provided with a plurality of transmission racks (11) for transmitting steel bars to a spraying position; a spraying chamber (20) for receiving the steel bars transmitted by the transmission racks (11), comprising a plurality of annular racks (21) arranged in a staggered manner, wherein a plurality of spray heads (22) are arranged in the annular racks (21), wherein the spraying chamber (20) is provided with a plurality of spray heads (22), and ...1) The automatic spraying equipment also includes: An annular spraying mechanism (30), wherein the annular frame (21) is hollow, the annular frame (21) is connected to a liquid supply end via an outer cylinder (211), the annular spraying mechanism (30) comprises an inner liner frame (31) rotatably mounted on the inner side of the annular frame (21), the inner liner frame (31) is driven by an external driving structure (32), the spray head (22) is mounted on the inner side of the inner liner frame (31) and is connected to the inside of the annular frame (21), and the inner liner frame (31) drives the spray head (22) to rotate when rotating along the inner wall of the annular frame (21); The oblique side guide mechanism (40) comprises a mounting frame (41) arranged at the front end or the rear end of the annular frame (21), the steel bar passes through the center of the mounting frame (41), a rotating member (42) cooperating with the steel bar is arranged on the inner side of the mounting frame (41), the rotating member (42) is driven by an external structure (43), and the steel bar moving in a straight line rotates under the action of the rotating member (42) when passing through the rotating member (42).

2. The automatic spraying equipment for the surface layer of a long strip steel member according to claim 1 is characterized in that: The inner ring surface of the annular frame (21) is provided with a movable groove, the inner lining frame (31) comprises a rotating ring plate (311) movably arranged in the movable groove, an end of the rotating ring plate (311) away from the annular frame (21) is connected to an outer covering plate (312), and three nozzles (22) are arranged on the outer covering plate (312), and the angle between the three nozzles (22) is 120 degrees.

3. The automatic spraying equipment for the surface layer of a long strip steel member according to claim 2 is characterized in that: The outer covering plate (312) is an arc-shaped plate, and annular gear rings (3121) are provided on both sides of the surface of the outer covering plate (312), and the gear rings (3121) are meshed with the outer driving structure (32).

4. The automatic spraying equipment for the surface layer of a long strip steel member according to claim 3 is characterized in that: The external drive structure (32) is provided with two groups and respectively cooperates with two gear rings (3121). The external drive structure (32) comprises a long gear (321) meshing with the gear ring (3121). A driving gear (322) is meshed at the top of the long gear (321). The driving gear (322) is driven by a rotating motor (323). The rotating motor (323) is arranged on the top of the annular frame (21).

5. The automatic spraying equipment for the surface layer of a long strip steel member according to claim 3 is characterized in that: A sealing strip (33) is provided on the outer side of the gear ring (3121), and the sealing strip (33) is fixedly connected to the inner side wall of the annular frame (21).

6. The automatic spraying equipment for the surface layer of a long strip steel member according to claim 1 is characterized in that: The mounting frame (41) comprises two mounting rods (411) fixed on the outside of the annular frame (21), a mounting ring (412) is fixed between the two mounting rods (411), the mounting ring (412) is hollow, and the steel bar passes through the center of the mounting ring (412).

7. The automatic spraying equipment for the surface layer of a long strip steel member according to claim 6 is characterized in that: The outer circumferential surface of the mounting ring (412) is provided with a plurality of grooves, the rotating member (42) is a plurality of internal bevel gears, part of the conical surface of the internal bevel gears is embedded in the grooves and cooperates with the steel bars, and the axial direction of the internal bevel gears is fixed to the mounting ring (412) via a U-shaped frame.

8. The automatic spraying equipment for the surface layer of a long steel member according to claim 6 is characterized in that: The external structure (43) comprises an external bevel gear (431) matched with the internal bevel gear, the external bevel gear (431) being driven by a rotating motor (432), and the rotating motor (432) being locked on the mounting ring (412).

9. The automatic spraying equipment for the surface layer of a long strip steel member according to claim 1 is characterized in that: The transmission frame (11) is a V-shaped groove used to clamp the steel bars.

10. The automatic spraying equipment for the surface layer of a long steel member according to claim 1 is characterized in that: The feed end of the spraying chamber (20) is provided with a guide mechanism (50), the guide mechanism (50) comprising a side limiting structure (51) arranged on the side of the steel bar, and a transverse limiting structure (52) arranged on the top of the steel bar, the side limiting structure (51) comprising two side guide wheels (511) for driving the steel bar forward and limiting the side of the steel bar, the bottom of the side guide wheel (511) is driven by a bottom motor (512), the transverse limiting structure (52) comprises a cross bar (521) located on the top of the steel bar, a plurality of top guide wheels (522) corresponding to the number of steel bars are sleeved on the cross bar (521), and the side of the cross bar (521) is driven by a side motor (523).

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